c# - 为什么会收到InvalidOperationException？

Question

foreach (var shotItem in Invadershots)// it points to me to there and doesnt allow me to loop.."{"Collection was modified; enumeration operation may not execute."}"
{
  shotItem.Move();// it happens when this simple method called (which actually checks some bool..if the shot was out of the winform).
  if (shotItem.removeShot)
  {
        Invadershots.Remove(shotItem);
  }
}

可能是因为我同时更改列表项吗？
我如何防止该错误发生？

Answer 1

您无法在枚举整个集合的同时更改其集合。创建集合的一个副本并对其进行更改。